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3min chapter
AMA | July 2023
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
The Serious Error in Relativity
If I am adding together two vectors that are both 100 in magnitude, but are opposite in direction, their sum is 100 plus 100 equals zero because their directions are oppositely aligned. You'll have to add them up taking into account the direction as well as the magnitude. That's the serious error. But you will still get an answer even if you did it correctly, 100 or hundreds of miles per second.
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